import org.hibernate.Session;
public class UserManager 
{
	private Session session=null;
	public UserManager(Session session)
	{
		if(session==null)
		{
			throw new RuntimeException("Invalid session object");
		}
		this.session=session;
	}
	public void saveUser(User user)
	{
		session.save(user);
	}
	public void updateUser(User user)
	{
		session.update(user);
	}
	public void deleteUser(User user)
	{
		session.delete(user);
	}
}
